奇怪的“用于链接服务器“(null)"的 OLE DB 提供程序“STREAM"返回列“[！BulkInsert].Value"的无效数据错误 [英] Weird "OLE DB provider 'STREAM' for linked server '(null)' returned invalid data for column '[!BulkInsert].Value' error

问题描述

使用的软件:Windows 7 64 位 Ultimate、.Net 4、SQL Server 2008 R2.

Software used: Windows 7 64 bit Ultimate, .Net 4, SQL Server 2008 R2.

选择@@version 返回:

select @@version returns:

Microsoft SQL Server 2008 R2 (RTM) - 10.50.1617.0 (X64)   Apr 22 2011 19:23:43   Copyright (c) Microsoft Corporation  Developer Edition (64-bit) on Windows NT 6.1 <X64> (Build 7601: Service Pack 1) (Hypervisor) 

要重现，假设您有一个本地 sql server 2008 R2 实例，请将以下代码粘贴到 linqpad 中并将其作为程序运行.

To reproduce, and assuming you have a local sql server 2008 R2 instance, paste the following code in linqpad and run it as a Program.

它爆炸了:

链接服务器(null)"的 OLE DB 提供程序STREAM"返回了列[!BulkInsert].Value"的无效数据.

OLE DB provider 'STREAM' for linked server '(null)' returned invalid data for column '[!BulkInsert].Value'.

void Main()
{
  SqlConnection cn = new SqlConnection("data source=localhost;Integrated Security=SSPI;initial catalog=tempdb;Connect Timeout=180;");
  cn.Open();

  IList<decimal> list = new List<decimal>() {-8m, 8m};

  decimal result = list.Sum(x => x);

  Console.WriteLine(result == 0);

  string tableName = "#test";

  CreateTemporaryTable(cn, tableName,
        String.Format(@"
          create table {0} (
            Value sql_variant
         );
       ", tableName));

  SqlBulkCopy sqlBulkCopy = new SqlBulkCopy(cn);
  sqlBulkCopy.DestinationTableName = tableName;       

  DataTable dt = new DataTable();
  dt.Columns.Add("Value", typeof(object));
  dt.Rows.Add(result);
  sqlBulkCopy.WriteToServer(dt);

  sqlBulkCopy.Close();

  cn.Close();
}

// Define other methods and classes here


public static void CreateTemporaryTable(SqlConnection cn, string destinationTableName, string createTableStatement)
{
  string objectIdValue = (destinationTableName.StartsWith("#") ? "tempdb.." : "") + destinationTableName;
  string sql = String.Format(@" 
    if (object_id (N'{0}', N'U') is not null)
      begin
        drop table {1};
      end;
      {2}    
      ", objectIdValue, destinationTableName, createTableStatement);

//      Console.WriteLine(sql);
  SqlCommand cmd = new SqlCommand(sql, cn);
  try
  {
    cmd.ExecuteNonQuery();
  }
  finally
  {
    cmd.Dispose();
  }
}

我可能会与 Microsoft 创建一个案例，但我很想知道其他人之前是否看到过这个，以及是否有任何解决方法.似乎并非所有的零都是平等的.

I will probably create a case with Microsoft, but I was curious to see if someone else saw this before, and if there are any workarounds. It seems that not all the zeros are created equal.

只是更新:

我向微软立案.他们花了将近 2 个月的时间才提出一些模糊的未记录的 dbcc 标志，该标志关闭了对通过批量复制泵入变量列的值的验证.该案例在不同团队之间反弹(支持由印度私人承包商提供)，他们从未解决根本问题，我认为这与以下行产生的价值以及批量复制代码如何处理它有关:

I opened a case with Microsoft. It took them almost 2 months to come up with some obscure undocumented dbcc flag that turns off the validation of the values that get pumped via the bulk copy into the variant column. The case was bounced between the different teams (the support was provided by Indian private contractors) and they never got to the root problem which I think it is related to the value produced by the following lines and how it is handled by the bulk copy code :

  IList<decimal> list = new List<decimal>() {-8m, 8m};
  decimal result = list.Sum(x => x);

因此，总而言之，这令人失望，我放弃了，因为这种情况很少见.

So, to conclude, it was disappointing and I gave up because it is a rare occurrence.

推荐答案

微软指出的解决方案是我最终使用的，是使用这个未记录的标志:DBCC TRACEON (7307, -1).您可以在连接级别或服务器级别启用它.

The solution indicated by Microsoft and which I ended up using, is to use this undocumented flag: DBCC TRACEON (7307, -1). You can enable it at the connection level or at the server level.

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